Using the MS Exchange Server Spoke with Records Containing 'Schedule Date/Time' Fields Leads to "Error: Function toString is not allowed in scope sn_ex_online_spke"Issue Some of the Actions in the Microsoft Exchange Server Spoke take Date/time values as inputs. For example the Create Calendar Event Action requires the input values 'Start date' and 'End date'. When those inputs are filled in from certain record types, for example Schedule Entry[cmn_schedule_span] records, you may see this error when you try to execute the Create Calendar Event Action: Error: Function toString is not allowed in scope sn_ex_online_spke ReleaseAll current releasesCauseThe MS Exchange Server Spoke Actions, such as Create Calendar Event, expect fields of type 'Calendar Date/Time' whereas the Schedule Entry[cmn_schedule_span] records have fields of type 'Schedule Date/Time'.ResolutionYou can use the Transform Functions feature available in Flow Designer to convert the 'Schedule Date/Time' type value to String. Steps to apply Transform functions on the data pills: Step 1: Open the flow that is failing and has 'Create Calendar Event' action.Step 2: Expand the action 'Create Calendar Event' where the input 'Start date'/'End date' value has a mapping to the data pill: Trigger Record->Schedule Entry Record->Start/End Date. Step 3: Click on the +fx button on the data pills (it can be seen towards the right side of the data pill when we hover the mouse cursor on the pill). Step 4: In the modal popup that shows the available Transform Functions, select 'Date & Time' > 'Date to String' > provide the format of the desired output date string. Ex: ISO Date/Time format in the dropdown. Step 5: Click on 'Run Test' to run the Flow using a test cmn_schedule_span record More information about transform functions can be found here: https://docs.servicenow.com/csh?topicname=transform-functions.html&version=latest